Preliminary Climate Summary for Summer 2010

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PNSLWX
DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-VAZ021-025>031-
036>040-042-050>057-501-502-WVZ050>055-501>504-020800-
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-
CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT-
WESTERN MINERAL-EASTERN MINERAL-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
418 PM EDT WED SEP 1 2010
...PRELIMINARY CLIMATE SUMMARY FOR SUMMER 2010...
THE FOLLOWING IS A BRIEF AND PRELIMINARY CLIMATE SUMMARY OF
TEMPERATURES FOR METEOROLOGICAL SUMMER 2010...WHICH IS FOR PERIOD
SPANNING JUNE 1ST THROUGH AUGUST 31ST INCLUSIVE...FOR WASHINGTON DC
AND BALTIMORE MD. RESULTS POSTED BELOW ARE TO BE CONSIDERED AS AN
UNOFFICIAL SUMMARY.
FOR WASHINGTON DC...
THE METEOROLOGICAL SUMMER PERIOD...JUNE TO AUGUST...OF 2010 WAS THE
WARMEST ON RECORD FOR WASHINGTON DC. THE AVERAGE TEMPERATURE DURING
THIS 92 DAY PERIOD WAS 81.3F...OVER ONE DEGF HIGHER THAN THE PREVIOUS
WARMEST METEOROLOGICAL SUMMER ON RECORD OF 80.0F RECORDED IN 1980.
FOR THE FIRST TIME ON RECORD...SINCE 1872...THE HIGH TEMPERATURE
FOR THE METEOROLOGICAL SUMMER MONTHS OF 2010 IN WASHINGTON AVERAGED
OVER 90 DEGREES...90.2F. THE PREVIOUS WARMEST HIGH TEMPERATURE FOR
THE METEOROLOGICAL SUMMER SEASON WAS 89.3F IN 1980.
THE LOW TEMPERATURE AVERAGED 72.4F FOR THE METEOROLOGICAL SUMMER
MONTHS OF 2010...WHICH WAS THE WARMEST ON RECORD BY 1.6 DEGREES.
SO FAR THIS YEAR THROUGH AUGUST...WASHINGTON DC HAS EXPERIENCED 57
DAYS OF 90F OR GREATER...WHICH IS TIED WITH 1988 FOR THE MOST NUMBER
OF SUCH DAYS ON RECORD THROUGH AUGUST...AND IS 12 DAYS OFF THE
RECORD OF 67 90-DEGREE DAYS FOR AN ENTIRE YEAR THAT WAS SET IN 1980.
FOR BALTIMORE MD...
THE METEOROLOGICAL SUMMER MONTHS...JUNE TO AUGUST...OF 2010 WAS THE
WARMEST ON RECORD FOR BALTIMORE MD. THE AVERAGE TEMPERATURE DURING
THIS 92 DAY PERIOD WAS 79.3F...BREAKING THE PREVIOUS WARMEST
SUMMER ON RECORD OF 79.1F IN 1943.
THE HIGH TEMPERATURE AVERAGED OVER METEOROLOGICAL SUMMER OF 2010
FELL JUST SHY OF 90 DEGREES...89.6F. THE PREVIOUS WARMEST SEASONAL
HIGH TEMPERATURE FOR METEOROLOGICAL SUMMER WAS 88.7F IN 1995.
SO FAR THIS YEAR THROUGH AUGUST...BALTIMORE HAS EXPERIENCED 52 DAYS
OF 90F OR GREATER...ONE DAY SHY OF THE MOST NUMBER OF 90-DEGREE DAYS
THROUGH AUGUST 31ST OF 53 DAYS RECORDED IN 1988. BALTIMORE ONLY NEEDS
TWO MORE 90-DEGREE DAYS THIS YEAR TO TIE THE RECORD...54 DAYS...SET
IN 1988 OF THE MOST NUMBER OF 90-DEG DAYS IN A CALENDAR YEAR.
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SMZ/JRK